Ozone gas is made up of oxygen molecules that have three atoms. it exists in polluted air and ozone layer. Ozone layer is formed in stratosphere(part of atmosphere).
Answer:
A coefficient friction is a value that shows the relationship between two objects and the normal reaction between the objects that are involved.
Explanation:
The reverberation time with 800 audiences is 0.875 seconds.
<h3>
Reverberation time with 800 audience</h3>
R₁V₁ = R₂V₂
where;
- R₁ is the reverberation time with 400 audience
- R₂ is the reverberation time with 800 audience
- V₁ is initial volume
- V₂ is final volume
R₂ = R₁V₁/V₂
R₂ = (1.4 x 500) / 800
R₂ = 0.875 seconds
Thus, the reverberation time with 800 audiences is 0.875 seconds.
Learn more about reverberation time here: brainly.com/question/9278479
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Probability of both Lucy and Zaki hitting the target = 1/4
When Zaki or Lucy throw a ball at the target there are only two outcomes for each of them ( i.e Hit or miss )
Therefore :
The probability of Lucy hitting the target = 1/2
The probability of Zak hitting the target = 1/2
<h3>Analysis </h3>
Probability of both Lucy and Zaki hitting the target
P(Lucy ) + P(Zaki ) = 1/2 + 1/2 = 1/4
Hence we can conclude that Probability of both Lucy and Zaki hitting the target = 1/4
Learn more about probability : brainly.com/question/24756209
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<u><em>Your question lacks some information but I have provided a general answer. </em></u>
